70434478405 has 4 divisors (see below), whose sum is σ = 84521374092. Its totient is φ = 56347582720.

The previous prime is 70434478391. The next prime is 70434478459. The reversal of 70434478405 is 50487443407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31383185409 + 39051292996 = 177153^2 + 197614^2 .

It is not a de Polignac number, because 70434478405 - 2¹⁵ = 70434445637 is a prime.

It is a super-2 number, since 2×70434478405² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7043447836 + ... + 7043447845.

It is an arithmetic number, because the mean of its divisors is an integer number (21130343523).

Almost surely, 2^70434478405 is an apocalyptic number.

It is an amenable number.

70434478405 is a deficient number, since it is larger than the sum of its proper divisors (14086895687).

70434478405 is a wasteful number, since it uses less digits than its factorization.

70434478405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086895686.

The product of its (nonzero) digits is 1505280, while the sum is 46.

The spelling of 70434478405 in words is "seventy billion, four hundred thirty-four million, four hundred seventy-eight thousand, four hundred five".